Earliest eon of the earth's history
A. Cenozoic Era
B. Precambrian
C. Trilobite
D. Mesozoic Era
Answer: the Mesozoic era came before the others however the accurate earliest eon is the Hadeon to be exact, but from the options you provided, answer it D.
Explanation:
_____ is a force caused by air that slows objects down
Answer:
Drag
Explanation:
Drag is a force caused by air that slows objects down
Friction is a major force that slows the object down, air resistance is a type of frictional force.
What is air resistance?Air resistance is a kind of frictional force that slows down an object from moving in a particular direction.
During the movement an object has a particular speed for movement, speed depends on how friction works, more friction slows the speed of an object a low friction allows the object to at a particular speed.
Air is a mixture of gases and particles in the atmosphere, these particles create a force during the movement of an object in the air, and these forces decide the actual speed of object movement.
Therefore air resistance is a force that slows the object.
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I just don't know what each one is
Stimulus: Ca2+ ion levels in blood are too low
•Sensor: •Control center:
•Effector and action(s):
•Negative feedback:
•Stimulus: Ca2+ ion levels in blood are too high
•Sensor:
•Control center:
•Effector and action(s):
•Negative feedback:
Someone please help!
The picture below shows a model of the human digestive tract.
Which of the following best describes the purpose of this model?
to show how organs in the digestive tract are compressed by contracting muscles
to show the parts of the digestive tract without having to use real organs
A
B
to show how microscopic molecules flow through the digestive tract
D
to show the function of one organ in the digestive tract in isolation
Answer:
to show the function of one organ in the digestive tract in isolation
Help
What is digestion? Compare and Contrast monogastric and ruminant digestion. Which animals are ruminants and which are monogastric? What organs do ruminants have to help them digest? What chemical compound can ruminants digest that ruminants cannot?
What organs do birds like chickens have and why? What is unique about a horse's digestion
Answer:
Liver
Explanation:
In shorthorn cattle, color shows incomplete dominance. A red cow has the genotype RR. A white cow
has the genotype ww. Heterozygous cattle are called Roan (red and white spotted) (RW).
1. Cross a red bull with a roan cow. Show the Punnett Square:
% Red Cow
% Roan Cow
% White Cow
Answer:
red cow would be 50% and the same for a roan cow
Cross a Red Bull with a roan cow. The Punnett Square are
% Red Cow = 25% red
% Roan Cow = 50% roan
% White Cow = 25% white
What is a Punnett square?A Punnett square is a square with a block that is used to see and describe the offspring of the next generation. It contains both genotypes, dominant and recessive, and then there is a crossing over.
Given that, the red cow has genotype RR
A white cow has the genotype ww.
Heterozygous cattle are called Roan (red and white spotted) (RW).
When RR (red) is crossed with WW (white), it results in a roan color.
RR (red) x WW (white) = RW (roan)
Two roan individuals are then mated.
RW x RW
RR RW RW WW
Offspring
1/4 RR - Red
1/2 RW - Roan
1/4 WW - White
Hence, the offspring are expected to be 25% red, 50% roan, and 25% white.
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When an organism has two alleles at a particular locus that are different, then the organism is called what?
Purebred
Dominant
Heterozygous
Recessive
Answer:
Heterozygous
Explanation:
Which process initiates the passage of half of a parent’s DNA to offspring?
Answer:
The process of male and female gamete is called as fertilization. It is the process which initiates that transfer of half of the chromosome from each parent namely father and mother. The chromosome number of body cell is 46, whereas that of germ cell is 23 chromosomes.
Explanation:
True or False: Our organ systems work separately and do not interact with each other at all in our bodies
Yellow seeds are dominant over green seeds. Two heterozygous yellow seeded pea plants are crossed. What percentage of the offspring will be yellow?
Answer:
Being A=yellow
the two partners have genotype Aa
The possible genotypes from the pinner's square are: AA, Aa, Aa, aa
The percentage of the offspring will be yellow is: 25%
Put the phases of cell division (sex cells ) in order there are 12
Answer:
Prophase I, prometaphase, metaphase I, anaphase I, telophase I, and cytokinesis, interphase, prophase II, prometaphase II, metaphase II, anaphase II, telophase II, and cytokinesis.
Explanation:
Prophase I, prometaphase, metaphase I, anaphase I, telophase I, and cytokinesis, interphase, prophase II, prometaphase II, metaphase II, anaphase II, telophase II, and cytokinesis are the 12 phases of cell division that occurs in the sex cells of human body. These double phases allow the sex cells to produce four daughter cells from a single parent cell but the chromosomes number is half in each daughter cell.
Damage to the brain can sometimes occur as the result of an accident.
State the part of the brain labeled A and suggest a problem that may be
experienced by a person who has damage to that part of the brain.
Answer:
A traumatic brain injury interferes with the way the brain normally works. When nerve cells in the brain are damaged, they can no longer send information to each other in the normal way. This causes changes in the person's behavior and abilities. The injury may cause different problems, depending upon which parts of the brain were damaged most.
why is there a need to protct our forests coral reefs and mangrove swamps?
Answer:
If we don't protect our forests, they get either get burned or cut down so that people can build more places or more space for crops. If we have little forest, there will be little oxygen in the air and we will die, global warming will also increase. Coral reefs are meant to protect the sea from inhumane acts which pollute the sea and cause marine animals to die, if they die the sea will be very polluted and marine animals might become extinct. Mangrove swamps are a habitat to many different animals, if they are gone the animals will have no habitat to live in and might soon face the consequences of extinction.
Lowest of low tides occur approximately how often?
What kind of seeds should farmers plants in order to grow giant pumpkins,and why is this important?
Answer:
pumpkin need too much of sunny place.
what feature of the red blood cells aloows for the determination of ABO blood types and Rh factors?
Answer:
ABO Typing
Explanation:
The test to determine your blood group is called ABO typing.
The presence or absence of the antigens A and B determines ABO blood types and Rh factors.
What is Antigen?This is defined as any substance that causes your immune system to produce antibodies against it.
Determination of ABO blood types and Rh factors is a result of the presence or absence of the antigens A and B found on the surface of red blood cells.
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what is significance of crossing over during meiosis?
Answer:
A- a different combination of genes is provided to each gamete
Explanation:
Crossing over accounts for genetic variation, because due to the swapping of genetic material during crossing over, the chromatids held together by the centromere are no longer identical
Where are chromosomes found in the human body what are chromosomes made of
Answer:
Chromosomes are thread-like structures located inside the nucleus of animal and plant cells. Each chromosome is made of protein and a single molecule of deoxyribonucleic acid (DNA). Passed from parents to offspring, DNA contains the specific instructions that make each type of living creature unique.
As a human advances in age, their nervous system cells rarely divide. Which stage of the cell cycle are those cells in?
A. metaphase
B. telophase
C. interphase
D. cytokinesis
E. mitosis
F. metaphase
Answer:
i think E mitosis
Explanation:
what kingdom does eubacteria belong to
Answer:
Like archaebacteria, eubacteria are complex and single celled. Most bacteria are in the EUBACTERIA kingdom. They are the kinds found everywhere and are the ones people are most familiar with. Eubacteria are classified in their own kingdom because their chemical makeup is different.
Explanation:
Which type of cell is capable of making its own sugars
Answer:
In a plant cell, chloroplast makes sugar during the process of photosynthesis converting light energy into chemical energy stored in glucose
Explanation:
I hope that helps
Is meiosis sexual reproduction or asexual?
Answer:
Sexual reproduction
Answer:
Meiosis is sexual reproduction.
Explanation:
Meiosis only occurs in reproductive cells, as the goal is to create haploid gametes that will be used in fertilization. Meiosis is important to, but not the same as, sexual reproduction. Meiosis is necessary for sexual reproduction to occur, as it results in the formation of gametes (sperm and eggs).
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The graph presents information about the climate of Dallas, Texas.
A graph shows average monthly precipitation and temperature for Dallas, Texas. Temperatures rise from January to July and drop between August and December. Precipitation increases from January to May, decreases in June, July, and August, increases again in September and October, and decreases again in November and December.
Which of the following best describes this climate?
A. warm temperatures and rainy weather all year long
B. warm summers, cold winters, seasonal precipitation
C. seasonal temperatures, little precipitation
D. warm, wet summers; cold, dry winters
Answer:
B
Explanation:
The statement that best describes the circumstance of this given climate is as follows:
Warm summers, Cold winters, and Seasonal precipitation.Thus, the correct option for this question is B.
What is Climate?Climate may be defined as a type of weather conditions that are persuading in any geographical location for a long period of time. In a more simple sense, it is characterized as the long-term pattern of weather in a particular area.
According to the context of this question, the duration between January to July illustrates the rising of temperature which means warm summer.
The duration between August and December, the temperature falls down consistently and gradually which means cold winters.
The months of January to May and September and October represent seasonal precipitation. According to the graph, it understands that the monsoon season comes twice a year with high precipitation.
Therefore, the correct option for this question is B.
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What is the function of the hydrogen bonds?
Answer:
ambot
Explanation:
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What occurs during glycolysis?
Answer:
Glycolysis is the process in which one glucose molecule is broken down to form two molecules of pyruvic acid science my fav class btw thats how i know it
Explanation:
Describe 3 pieces of evidense that you could use to support the theory of evolution
Answer: yes the person above me is totally wrong and is not an animal lover report her answer.
Explanation: bye babes mwhaaa ;)
An advertisement for a health supplement is being shown in a commercial explaining the benefits of increasing lean muscle, strengthen tendons, and ligaments. It also includes a fat burner that will increase the breakdown of triglycerides. Which two biomolecules are being discussed in this ad?
carbohydrates and lipids
lipids and nucleic acids
proteins and carbohydrates
proteins and lipids
Answer:
C. Proteins and carbohydrates
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about photosynthesis gas
Explanation:
detach it from or reattach it to the ATP molecule (Brandt). A main reason this is important is because as it was stated earlier, almost all organisms obtain and store their energy through the use of ATP. It is important to note that this energy comes from the energy stored in the bonds of the ATP molecule; therefore, breaking the bonds will release energy and the building of the bonds will require energy. Using this background knowledge, the question can be addressed more thoroughly. Most plants (a fruit in this case) make their own energy through the use of photosynthesis. The basic process of photosynthesis occurs as: light energy (sun) + 6 H2O + 6 CO2 6 O2 + C6H12O6 This is a simplified version of the equation and one must keep in mind that the reaction does not simply occur as written. There are many processes that must take place before the final product, glucose, is produced. Conceptually, photosynthesis is the reverse of cellular…
How do you get rid of homologous chromosomes? PLEASE ANSWER
Answer:
In metaphase I, the tetrads line themselves up at the metaphase plate and homologous pairs orient themselves randomly. In anaphase I, centromeres break down and homologous chromosomes separate. In telophase I, chromosomes move to opposite poles; during cytokinesis the cell separates into two haploid cells.
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The ____________________ endoplasmic reticulum has a role in transporting proteins to different compartments in the cell.
Answer:
The rough endoplasmic reticulum works with the Golgi apparatus to move new proteins to their proper destinations in the cell. The membrane of the RER is continuous with the outer layer of the nuclear envelope. Smooth endoplasmic reticulum does not have any ribosomes attached to it, and so it has a smooth appearance.
Explanation:
The rough endoplasmic reticulum has a role in transporting proteins to different compartments in the cell.
What is Protein transporting?Protein transporting may be defined as a process through which proteins are transported from one cellular organelle to another after being synthesized in the rough endoplasmic reticulum along with the Golgi complex.
Due to having ribosomes on their surface, the rough endoplasmic reticulum is known as the site of protein synthesis. Due to the presence of ribosomes, their surface is not as smooth as compared to the smooth endoplasmic reticulum.
The protein after synthesis packed into the spherical-shaped vesicles which are then fused with the membrane of a specific cell organelle in order to function properly.
Therefore, the rough endoplasmic reticulum has a role in transporting proteins to different compartments in the cell.
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